Add support for Thermex Lima 80V water heater

Issue #842

ACKNOWLEDGEMENTS.md

@@ -409,3 +409,4 @@ Further device support has been made with the assistance of users.  Please consi
 - [lyatam](https://github.com/lyatam) for contributing support for ZX-DB11B doorbell alarms.
 - [urgelaszlo](https://github.com/urgelaszlo) for contributing support for Fisher Summer air conditioners.
 - [felipecrs](https://github.com/felipecrs) for assisting with support for SmarDeer smart locks.
+- [rbalaev](https://github.com/rbalaev) for assisting with support for Thermex Lima 80V water heaters.

DEVICES.md

@@ -98,6 +98,7 @@
 - Hydrotherm Dynamic/X8 heat pump hot water systems
 - ITS-4.5HD super water heatpump
 - Thermex IF series V pro hot water systems
+- Thermex Lima 80V
 
 ### Thermostats
 

custom_components/tuya_local/devices/thermex_lima80v_waterheater.yaml

@@ -0,0 +1,30 @@
+name: Water heater
+primary_entity:
+  entity: water_heater
+  dps:
+    - id: 1
+      type: boolean
+      name: operation_mode
+      mapping:
+        - dps_val: false
+          value: "off"
+        - dps_val: true
+          value: electric
+    - id: 9
+      type: integer
+      name: temperature
+      range:
+        min: 35
+        max: 75
+    - id: 13
+      type: string
+      name: work_mode # to observe for potential expansion of operation_mode
+    - id: 20
+      type: integer
+      name: attr1 # maybe fault_code?
+    - id: 101
+      name: away_mode
+      type: boolean
+    - id: 102
+      type: integer
+      name: current_temperature